High resistance of Plasmodium falciparum to sulphadoxine/pyrimethamine in northern Tanzania and the emergence of dhps resistance mutation at Codon 581. oleh Samwel Gesase, Roly D Gosling, Ramadhan Hashim, Rosalynn Ord, Inbarani Naidoo, Rashid Madebe, Jacklin F Mosha, Angel Joho, Victor Mandia, Hedwiga Mrema, Ephraim Mapunda, Zacharia Savael, Martha Lemnge, Frank W Mosha, Brian Greenwood, Cally Roper, Daniel Chandramohan